Depreciation Allowed or Allowable — Why Unclaimed Deductions Still Count

TL;DR: At sale, the IRS reduces your cost basis by the greater of the depreciation you actually claimed or the amount you were entitled to claim. If you never depreciated your rental property, you still lose basis and owe recapture on the allowable amount. A change in accounting method (Form 3115) can catch up missed depreciation before you sell.

_Last reviewed: July 2026 · 6 min read_

When you sell rental property, the IRS assumes you took every depreciation deduction you were entitled to — even if you didn't. The phrase "allowed or allowable" appears in IRC §1016(a)(2) and means you pay depreciation recapture on the full amount the law allowed, whether or not you actually claimed it on Schedule E.

Okoniq Property Hub lets landlords log property improvements and track which expenses were capitalized versus expensed, making it easier to reconcile what was depreciated when it's time to file Form 3115 or calculate basis at sale.

Why does the IRS reduce basis by allowable depreciation, not just what I claimed?

The law prevents you from skipping depreciation to preserve a higher basis. IRC §1016(a)(2) states that basis is reduced by "the amount allowed as deductions … but not less than the amount allowable." In plain language: the IRS gives you credit for the deduction you were entitled to, whether or not you took it.

If you bought a rental property and never filed Schedule E depreciation, your adjusted basis still drops by the allowable amount when you sell. The recapture calculation starts from that reduced basis. You lose the deduction and keep the tax liability.

This rule applies to residential rental property, commercial buildings, and any depreciable asset. The IRS confirms the current figures and procedures on IRS.gov tangible property regulations — verify the recovery period for your asset type before filing.

Does recapture apply if I never claimed the depreciation?

Yes. Depreciation recapture is calculated on the amount by which your basis was required to be reduced, not the amount you actually deducted. If you were entitled to depreciate a property but didn't, the IRS still treats your basis as if you had.

When you sell, the recapture amount flows through Schedule D and Form 4797. Unrecaptured §1250 gain is taxed at a maximum rate set by statute — confirm the current rate on IRS.gov or with your CPA. You pay that tax on the allowable depreciation whether or not you ever saw the deduction on your return.

This is why landlords who filed Schedule E without depreciation for years often face an unpleasant surprise at sale. The lost deductions don't erase the recapture obligation. For a detailed walk-through of how recapture works when you do claim depreciation, see depreciation recapture at sale.

Can I fix missed depreciation before I sell?

Yes, using Form 3115, Application for Change in Accounting Method. The IRS allows you to catch up on missed depreciation by filing an automatic accounting method change. You'll calculate the cumulative adjustment — the total depreciation you should have taken minus what you did take — and claim it as a §481(a) adjustment, typically spread over four years.

Filing Form 3115 before you sell ensures you get the deductions you were entitled to. You'll still owe recapture at sale, but at least you'll have used the depreciation to offset rental income in the years before the sale. The form goes with your return for the year of the change and requires a statement of the prior years' depreciation schedules.

Many landlords who discover they've missed depreciation only realize it when preparing to sell — that's still better than never fixing it. If you've tracked your rental property expenses and capital improvements over the years, the catch-up calculation is straightforward. If you haven't, expect to reconstruct purchase documents, improvement invoices, and prior-year returns.

What if I claimed depreciation but got the recovery period wrong?

The same rule applies: basis is reduced by the allowable amount, not the amount you actually claimed. If you depreciated a residential rental over the wrong number of years, your basis at sale is still reduced by what the statute required. The IRS publishes the current recovery period and convention for residential rental property on IRS.gov — confirm before filing.

If the error was in your favor — you claimed more depreciation than allowed — the excess claimed is recaptured. If the error was against you — you claimed less — your basis is still reduced by the higher allowable figure. Either way, fixing the error with Form 3115 before you sell is the cleanest outcome.

For properties where you performed a cost segregation study, the allocated amounts determine allowable depreciation for each component. If you never filed the study results but could have, the allowable amount is still calculated as if you had. The study itself doesn't create allowable depreciation — the underlying asset allocation does.

How does allowed or allowable interact with passive losses?

If you have suspended passive losses from prior years because your rental income didn't cover your expenses, those losses carry forward and can be released when you sell the property. But the depreciation that created some of those losses still reduces your basis, whether or not the loss was used.

Passive loss rules under §469 limit when you can use the deduction. Basis reduction under §1016 happens regardless of whether you used it. A landlord who couldn't use depreciation due to passive loss limits still has a lower basis at sale and owes recapture on the allowable amount. For more on passive loss limits and the allowance for active participants, see the $25,000 passive loss allowance.

The release of suspended losses at sale reduces the overall gain, but it doesn't undo the basis reduction or eliminate recapture. The two calculations happen in parallel.

What records do I need to prove what was allowed or allowable?

Keep every Schedule E, Form 4562 (Depreciation and Amortization), and the settlement statement from when you bought the property. If you filed a home office deduction or deducted improvements that should have been capitalized, keep those records too.

When you sell, you'll reconcile your adjusted basis: purchase price, plus capital improvements, minus depreciation allowed or allowable. If the IRS audits the sale, they'll ask for depreciation schedules going back to the placed-in-service date. If you can't produce them, they'll calculate allowable depreciation themselves — and that number is rarely in your favor.

If you inherited the property, the stepped-up basis resets the depreciation clock, and prior depreciation by the decedent is irrelevant. If you converted a primary residence to a rental, your basis for depreciation is the lesser of your adjusted basis or the fair market value at conversion — confirm the conversion-date valuation and keep the appraisal.

FAQ

What does "allowed or allowable" mean in tax law?

Allowed is the depreciation you actually claimed on your return. Allowable is the depreciation you were entitled to claim under the statute. At sale, the IRS reduces your basis by whichever is greater — you don't get to skip depreciation and keep a higher basis.

Can I amend old returns to claim missed depreciation?

No. Depreciation is a change in accounting method, not an error correction. You fix it with Form 3115, not amended returns. The form calculates a cumulative §481(a) adjustment and lets you claim the missed deductions going forward.

If I never claimed depreciation, do I still owe recapture tax?

Yes. Recapture is calculated on the amount by which your basis was required to be reduced, not the amount you deducted. You'll pay tax on the allowable depreciation at the unrecaptured §1250 gain rate even if you never saw the deduction.

Does a 1031 exchange avoid the allowed-or-allowable rule?

A 1031 exchange defers gain recognition, including recapture, but it doesn't erase the basis reduction. Your replacement property's basis carries over the depreciation history from the relinquished property. If you later sell without exchanging, the same allowed-or-allowable rule applies to the cumulative depreciation across both properties.

How far back do I need depreciation records when I sell?

Back to the placed-in-service date of the property as a rental. If you bought it in 2010 and sell in 2026, you need every year's depreciation schedule. If you inherited it, you need records from the date it was placed in service after inheritance. If you can't reconstruct them, the IRS will calculate allowable depreciation and reduce your basis accordingly.

<div class="glass rounded-2xl p-5 mt-7 max-w-4xl border border-red-400/30 bg-red-500/5"> <div class="flex items-start gap-3"> <span class="text-2xl flex-shrink-0">⚠️</span> <div class="flex-1 min-w-0"> <p class="text-red-200 text-sm font-bold">Not tax advice</p> <p class="text-slate-300 text-xs mt-1 leading-relaxed"> This post assumes you held rental property as an individual and did not elect out of depreciation under §168(k)(7). It does not account for state tax treatment, partnership allocations, or legislative changes after July 2026. Tax rules change and depend on your specific situation. Talk to a licensed CPA before acting on anything here, and confirm current figures on IRS.gov. </p> </div> </div> </div>